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Multifunction Car Jump Starter Quick starting 12V gasoline car (up to 5.0L) and diesel car (up to 3.0L) just in seconds when the car battery dead. When you are traveling in some untraversed place, and your car battery is out of power, you can use this car jump starter to start your car.



  1. For your safety, please DO NOT disassemble the jump starter. Once dismantled by yourself, we will not service for any arising issue.
  2. Please make sure that the jump starter is Fully Charged before starting the engine.
  3. If the jump starter can not start at one time. Please try it again after 30 seconds or longer, and start more slowly.


Model number: GG-JS-19
Size: L180*W85*H40mm
Power Weight: 480g
Charging Node: CC/CA 12V/15V 1A
Output: 5V-1A/2A/3A/4A, 15V-2A, 16V-3.5A, 19V-3.5A
Car Boot Voltage: 12V
Boot Current: 300A
Peak Current: 600A
Battery Capacity: 16000mAh
Cycle Boot Life: more than 3000 times
Full Charging Time: 4-5 hours
Operating Condition: -25~65 Degrees Celsius
Battery Cell Composition: Lithium polymer battery
Warranty: 12 Months
Characteristic: The charging speed and discharging speed of the last 15% of the product will be faster. This is the characteristic of high-rate lithium batteries and it will not affect the quality of the product and the normal work.

Package Included:

  • Car jump starter (Power bank) *1
  • Battery clamps (Red=positive; Black=negative) *1
  • Wall charger *1
  • Car charger *1
  • 3 in1 charging cable *1
  • Laptop connector *8
  • Laptop charging cable *1
  • English instructions *1
  • Retail tool case *1
  • Cigarette lighter starter as gift*1



Q: What is the car battery charging voltage? What voltage is required to charge it?
A 12V car battery can be charged over a range of voltages. It needs at least 12.9 volts to charge, but at this voltage, the charge rate of an automobile battery is very slow. A car battery can be charged safely at high voltages as long as the battery is not fully charged. So alternator voltages and car battery chargers voltages can go over 15V safely, as long as the battery is monitored to make sure that it isn’t overcharged. These higher voltages allow the battery to be charged faster. But if you want to leave the battery on the charger to keep it topped off, a float voltage of 13.6V to 13.8V is usually used.

Q: What is the 12V car battery voltage range as it is charging and discharging?
A: Car battery voltage will change depending on its condition. When the engine is off the battery’s open-circuit voltage is 12.9 volts. A freshly charged battery, either by alternator or charger, can measure higher voltage than that by accumulating non-chemical charge on the plates like a capacitor, so it might have to sit for a while or be discharged a little to get to that voltage. As the battery discharges the voltage will sag down to 10 volts or lower. If the battery stays above 11.8 volts it will generally still start the vehicle.

Q: Can a car battery freeze when it gets too cold?
When a lead-acid battery is fully charged the electrolyte is sulfuric acid with a freezing point of below -40°C. When the battery is fully discharged all the sulfate ions are consumed and the electrolyte is mostly pure water with a freezing point of zero degrees C. So it is not unusual to go out to a car that has a dead battery in the mid-winter and find that the battery won’t accept any charge current. It needs to warm up before it can be charged, and then it won’t freeze again until it is discharged.

Q: How long does it take to recharge the battery after starting the engine?
A: Not very long. This is not too hard to estimate. Typical 12-volt car batteries are rated for cold-cranking amps, and the one I use has 800 CCA. So being very very conservative let’s assume that it takes 800 amps to start the car. I have three cars, 17 years old, 14 years old, and 22 years old, they all start in less than 3 seconds, but to be conservative let’s assume 10 seconds. So 10 seconds times 800 amps are 8000 amp-seconds (8000 coulombs for you physicists) or 2.2 amp-hours. If the alternator is sourcing 80 amps, this will be replaced in 99 seconds. A more accurate calculation would be 200 amps for 3 seconds, which would be replaced in less than 8 seconds.

Q: Why does driving short distances flatten my battery?
Well, it does a number on my battery. I have a 5-mile commute to work, and in the winter I have the headlights, the seat heater, the heater fans, and the pump, and the rear window defroster going continuously in the morning and in the evening. Not to mention the radio blasting. And of course, the battery is cold, in the bottom of the trunk, so it will charge slower. This doesn’t give the battery much of a chance to charge or overcharge to de-stratify the acid with a few bubbles. In my Jaguar the windows slide down half an inch when the door opens to avoid the top seal. When the battery voltage gets low the car lets me know by not raising the windows back up when the door closes. I bought a new battery last spring, and by December the windows are giving me trouble. As the days lengthen and I don’t use the headlights as much the car battery charge eventually fills up.

Q: Should I add water to the battery before or after I charge it?
Add the water before you charge. The charging process will create bubbles that help mix the acid. The charging process, even with a completely out of control battery charger, will not consume much water during one charge. I should also mention that modern charging systems with accurate voltage regulations will not consume any appreciable water, and of course, the sealed batteries recycle their water, so you can’t replace it.

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How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:

Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.

Refunds & returns policy

Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
  • If you received the wrong item you can request a refund or a reshipment.
  • If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

We do not issue the refund if:

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of automotonow.com (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of https://automotonow.com

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.


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